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The mean weight of the baggage carried into an airplane by individual
passengers at ABC International Airport is 20 kilograms. A Statistician takes a
random sample of 40 baggages and obtains a sample mean weight of 19.2
kilograms with a standard deviation of 6 kilograms. Test the claim that p=19.8
kilograms at 1% level of significance.


Sagot :

Answer:

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Step-by-step explanation:

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